Spring-wheel.



G. L. DRIEFER. SPRING WHEEL APPLIGATION FILED JULY 13, 1906.

III/mill 3 I I Patented July 27, 1909.

Francisco,

CONRAD L. DRIEFER, or SAN FRANOlSCO, CALIFORNIA.

SPRING-W EEL.

Specification of Letters Patent.

- Patented Ju1'y27, 1909.

Application filed July 1a, 1908. Serial No. M3,.186.

To all whom it may concern: Be it known that I, CONRAD L.

and State of California, have invented a new and useful Spring-Wheel, of which the following is a specification in such full and clear terms as will enable those skilled in I springs will be heavy enough to each sustam the art to construct and usethe same.

, This invention relates to a'wheel used forthe purpose of relieving Its object is to give the I the shock of rough roads in vehicles. same resiliency to wheels as is given with a pneumatic tire, without the great expense for rubber, since with this wheel only a thin strip of solid rubber is used in the place of the large amount of rubber ina pneumatic tire. In the drawingsin which the same numeral of reference is applied to the same member throughout, Figure 1 is, a side view of a portion of one of the wheels the side plates of the wheel being omitted and Fig. 2 is an elevation in section of thewlieel on one side of the hub.

he numeral 1 represents the hub to which are secured the flanges-2, and secured to each flange 2 is a disk 3, bolts l passing through the disk and into the flanges to hold the former in place. The two disks are secured together by means of two ring channels or annuli 7 and 8, the flanges of. the channels or annuli extending toward the center of the wheel. v I

The telly 9 consists of a series of links which are secured together by means of the pins 10.

The spokes of the wheel consist of the rods 11 which have the nuts '12 at their inner ends and the pins 13 at their outer ends tosecure the rods to the links of the telly, the

outer ends of the rods being larger than the inner ends and forming a-shoulderat 14, at

which point there is slipped over the inner and smaller rod. On

- the spokes are also slipped over the small inner spring 16, the large outer-spring 17 and the rubber bumper 18, the purpose of the latter being to prevent the wheel from making a noise. Where one joins another there is a; rod 19 which passes through the outer channel iron 8 and is se- Dnrnrnn, a citizen of the United States, residing at San in the county of San Francisco" a heavy washer 5- link of the telly.

cured to the telly at its outer end, this rod having the spring 20 slipped over it to assist strength as will .give no motion under anydesired-load, as for example suppose each wheel to carry a load of one ton, then the more than one 'ton, say a ton and a quarter without moving when the wagonis at rest,

then when the wagon isin motion the wheels will have considerable resillency for the reason that the blow struck by a movingwheel i is much-heavier than the mere weight of the wheel. Thus it will be possible to give wheels any desired amount of resiliency, by simply using a heavy or light spring inthe construction.

An advantage of this wheel isthat all the moving parts are. covered up, the disks 3 covering the inner springs and the'sheet 2'2 covering'the outer springs, said sheet being of heavy ,rubber in order that it may withstand the distortion due to motion of the links of thefelly. A shallow solid rubber tire 23 is used to .give the wheel a good grip on thei'oad. and to decrease the noise due to travel on stone pavements.

Having thus described my invention what I claim as new and desire to secure by Let-. ters Patent of the United States is as follows:

'1. In a wheel, the combination of a pair of plates, a hub to which said plates are secured, two channel iron annuli secured tov the plates, '9. telly tormed of a series of links, a spoke secured of each link, a spring surrounding the spoke and bearing on the inner side of the link and on the outer annulus, a second spring surrounding the spoke and bearing on a washer on the spoke and on the inner annulus, and means at the junction-of'each spoke to give the links of the tire greater resiliency.

2. In a "wheel, a

plates one smaller than the other, a felly formed of a series of links, a series of spokes lus, a second spring surrounding the spoke the at one end nearthe center- I hub, a pair of plates secured to the hub, two annuli. secured to the and bearing on a shoulder of the spoke and 011 "the inner annulus, a short rod secured to the felly at the junction of its links, a spring surrounding the rod and bearing on the two adjacent links and on the outer annulus, said short rod extendlng only as far as the outer annulus.

W. T. HEss, C. P. GRIFFIN. 

